package com.mmall.common;

import org.codehaus.jackson.annotate.JsonIgnore;
import org.codehaus.jackson.map.annotate.JsonSerialize;

import javax.xml.crypto.Data;
import java.io.Serializable;

/**
 * Created by DongGang on 2017/7/29.
 * ctl+alt+space智能感知 代码提示
 */
@JsonSerialize(include = JsonSerialize.Inclusion.NON_NULL)
//保证系列化json对象的时候,如果是null的时候,可以也会消失
public class ServerResponse<T> implements Serializable{

    private  int status;
    private  String msg;
    private T data;

    private ServerResponse(int status){
        this.status = status;
    }
    private ServerResponse(int status,T data){
        this.status = status;
        this.data = data;
    }
    private ServerResponse(int status,String msg ,T data){
        this.status = status;
        this.msg = msg;
        this.data = data;
    }
    private ServerResponse(int status,String msg ){
        this.status = status;
        this.msg = msg;
    }

    /**
     * 开放的方法
     * @return
     */
    @JsonIgnore
    //使之不在json序列化响应json当中
    public boolean isSuccess(){
        //响应成功 true不会加载在Json里
        return  this.status == ResponseCode.SUCCESS.getCode();
    }
    public int getStatus(){
        return  status;
    }

    public String getMsg() {
        return msg;
    }

    public T getData() {
        return data;
    }

    public static <T> ServerResponse<T> createBySuccess(){
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode());
    }
    public static <T> ServerResponse<T> createBySuccessMessage(String msg){
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(),msg);
    }

    /**
     * 解决了第二第四个私有构造器的调用问题
     * @param data
     * @param <T>
     * @return
     */
    public static <T> ServerResponse<T> createBySuccess(T data){
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(),data);
    }
    public static <T> ServerResponse<T> createBySuccess(String msg,T data){
        return new ServerResponse<T>(ResponseCode.SUCCESS.getCode(),msg,data);
    }

    public static  <T> ServerResponse<T> createByError(){
        return new ServerResponse<T>(ResponseCode.ERROR.getCode(), ResponseCode.ERROR.getDesc());
    }
    public static  <T> ServerResponse<T> createByErrorMessage(String errorMessage){
        return new ServerResponse<T>(ResponseCode.ERROR.getCode(), errorMessage);
    }

    public static <T> ServerResponse<T> createByErrorMessage(int errorCode,String errorMessage){
        return new ServerResponse<T>(errorCode, errorMessage);
    }
}
